I love the Met Friday/Saturday late nights - and the Rock and Roll exhibit is open now, so I would make it a point to see it if you have any interest whatsoever in those kinds of artifacts. (I'm actually pretty interested in the "Camp: Notes on Fashion" - i.e. the root word of "campy" not a place you go for the summer - exhibit at the Costume Institute, which is downstairs from the Egyptian galleries, so may be heading up there soon.)